Watt is a dance club that harvests energy generated by people dancing on the dance floor. The energy produced by the floor in Watt are used to power the light show on and around the floor. The company that produces the floor, Sustainable Dance Floors, said the energy could easily be diverted to power other parts of the club as well. In addition to the dance floor, Watt has rain water fed toilets and fully recyclable bar. I know if I’m every in Rotterdam, I’m checking this place out!